安徽农业科学2011，Vol.39Issue(29)：18201-18204,4.
不同土地利用类型的地表亮温变化特征
Surface Brightness Temperature Variation of Different Land Use Types
摘要
Abstract
[Objective] The aim of this study is to investigate the surface brightness temperature variation of different land use types. [ Method] Based on MODIS data in 2008 and 1GBP land classification system, the surface brightness temperature in the Yangtze River Delta area was calculated, and its rules and reasons were also discussed in this study. [ Result] the Different land use types had its own special brightness temperature variation. During the day, the brightness temperature was as follows: grassland or urban and built-up land > cropland, forest land and barren > wetland and water. During the night, the brightness temperature was as follows: water, wetland and barren > grassland or urban and built-up land > forest land and cropland. Brightness temperature showed the trend of high in summer and low in winter or increasing in spring and decreasing in fall. The characteristics of surface thermal radiation could be reflected better by brightness temperature at night. Solar radiation, mixed pixel, heat capacity, water content were the main reasons for the difference of brightness temperature in different land types. [ Conclusion] The brightness temperature variation of different land use types has significance for water content analysis in soil and dynamic monitoring of land use.关键词
MODIS/遥感/地表亮温/土地利用类型Key words
MODIS/ Remote sensing/ Surface brightness temperature/ Land use type分类
管理科学引用本文复制引用
石亦霏,查勇..不同土地利用类型的地表亮温变化特征[J].安徽农业科学,2011,39(29):18201-18204,4.基金项目
国家科技支撑计划(2008BAC34B07) （2008BAC34B07）
江苏省属高校自然科学重大基础研究项目(08KJA170001). （08KJA170001）
